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公开(公告)号:US07258945B2
公开(公告)日:2007-08-21
申请号:US10722946
申请日:2003-11-26
申请人: Timothy A. Bekkedahl , Lawrence J. Bregoli , Ned E. Cipollini , Timothy W. Patterson , Marianne Pemberton , Jonathan Puhalski , Carl A. Reiser , Richard D. Sawyer , Margaret M. Steinbugler , Jung S. Yi
发明人: Timothy A. Bekkedahl , Lawrence J. Bregoli , Ned E. Cipollini , Timothy W. Patterson , Marianne Pemberton , Jonathan Puhalski , Carl A. Reiser , Richard D. Sawyer , Margaret M. Steinbugler , Jung S. Yi
IPC分类号: H01M8/04
CPC分类号: H01M8/04029 , H01M8/0243 , H01M8/0245 , H01M8/0258 , H01M8/0267 , H01M8/0271 , H01M8/04089 , H01M8/04097 , H01M8/04119 , H01M8/04156 , H01M8/04291 , H01M8/1007 , H01M2008/1095 , H01M2250/10 , Y02B90/14
摘要: A fuel cell power plant includes a fuel cell having a membrane electrode assembly (MEA), disposed between an anode support plate and a cathode support plate, the anode and/or cathode support plates include a hydrophilic substrate layer having a predetermined pore size. The pressure of the reactant gas streams is greater than the pressure of the coolant stream, such that a greater percentage of the pores within the hydrophilic substrate layer contain reactant gas rather than water. Any water that forms on the cathode side of the MEA will migrate through the cathode support plate and away from the MEA. Controlling the pressure also ensures that the coolant water will continually migrate from the coolant stream toward the anode side of the MEA, thereby preventing the membrane from becoming dry. Proper pore size and a pressure differential between coolant and reactants improves the electrical efficiency of the fuel cell.
摘要翻译: 燃料电池发电厂包括具有设置在阳极支撑板和阴极支撑板之间的膜电极组件(MEA)的燃料电池,阳极和/或阴极支撑板包括具有预定孔径的亲水基底层。 反应物气体流的压力大于冷却剂流的压力,使得亲水基底层内的较大百分比的孔含有反应物气体而不是水。 在MEA的阴极侧形成的任何水将通过阴极支撑板迁移并远离MEA。 控制压力还可确保冷却水从冷却剂流向MEA的阳极侧连续迁移,从而防止膜变干。 冷却剂和反应物之间适当的孔径和压力差提高了燃料电池的电效率。
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2.
公开(公告)号:US06913845B2
公开(公告)日:2005-07-05
申请号:US10282311
申请日:2002-10-28
申请人: Timothy A. Bekkedahl , Lawrence J. Bregoli , Richard D. Breault , Emily A. Dykeman , Jeremy P. Meyers , Timothy W. Patterson , Tommy Skiba , Chris Vargas , Deliang Yang , Jung S. Yi
发明人: Timothy A. Bekkedahl , Lawrence J. Bregoli , Richard D. Breault , Emily A. Dykeman , Jeremy P. Meyers , Timothy W. Patterson , Tommy Skiba , Chris Vargas , Deliang Yang , Jung S. Yi
CPC分类号: H01M4/9083 , H01M4/926 , H01M8/0234 , H01M8/0267 , H01M8/0271 , H01M8/04223 , H01M8/04225 , H01M8/04228 , H01M8/04238 , H01M8/1016 , H01M8/241 , H01M8/2465 , H01M8/2483 , H01M2008/1095 , H01M2300/0091
摘要: Each cell of a fuel cell stack is provided, between the anode 37 and cathodes 38, with either (a) a permanent shunt (20) which may be a discrete resistor (42-44), a diode (95), a strip of compliant carbon cloth (65), or a small amount of conductive carbon black (22) in the ionomer polymer mixture of which the proton exchange membrane (39) is formed, or (b) a removeable shunt such as a conductor (69) which may be rotated into and out of contact with the fuel cell anodes and cathodes, or a conductor (85) which may be urged into contact by means of a shape memory alloy actuator spring (90, 91), which may be heated.
摘要翻译: 在阳极37和阴极38之间提供燃料电池堆的每个电池,具有(a)永久性分流器(20),其可以是分立电阻器(42-44),二极管(95),一条 或其中形成质子交换膜(39)的离聚物聚合物混合物中的少量导电炭黑(22),或(b)诸如导体(69)的可移除分流器 可以与燃料电池阳极和阴极或者可以通过可被加热的形状记忆合金致动器弹簧(90,91)被推动接触的导体(85)旋转进入和脱离接触。
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公开(公告)号:US20110039178A1
公开(公告)日:2011-02-17
申请号:US12925217
申请日:2010-10-14
申请人: Timothy A. Bekkedahl , Lawrence J. Bregoli , Ned E. Cipollini , Timothy W. Patterson , Marianne Pemberton , Jonathan Puhalski , Carl A. Reiser , Richard D. Sawyer , Margaret M. Steinbugler , Jung S. Yi
发明人: Timothy A. Bekkedahl , Lawrence J. Bregoli , Ned E. Cipollini , Timothy W. Patterson , Marianne Pemberton , Jonathan Puhalski , Carl A. Reiser , Richard D. Sawyer , Margaret M. Steinbugler , Jung S. Yi
IPC分类号: H01M8/04
CPC分类号: H01M8/04029 , H01M8/0243 , H01M8/0245 , H01M8/0258 , H01M8/0267 , H01M8/0271 , H01M8/04089 , H01M8/04097 , H01M8/04119 , H01M8/04156 , H01M8/04291 , H01M8/1007 , H01M2008/1095 , H01M2250/10 , Y02B90/14
摘要: A fuel cell power plant (10) includes a fuel cell (12) having a membrane electrode assembly (MEA) (16), disposed between an anode support plate (14) and a cathode support plate (18), the anode and/or cathode support plates include a hydrophilic substrate layer (80, 82) having a predetermined pore size. The pressure of the reactant gas streams (22, 24) is greater than the pressure of the coolant stream (26), such that a greater percentage of the pores within the hydrophilic substrate layer contain reactant gas rather than water. Any water that forms on the cathode side of the MEA will migrate through the cathode support plate and away from the MEA. Controlling the pressure also ensures that the coolant water will continually migrate from the coolant stream toward the anode side of the MEA, thereby preventing the membrane from becoming dry. Proper pore size and a pressure differential between coolant and reactants improves the electrical efficiency of the fuel cell.
摘要翻译: 燃料电池发电厂(10)包括具有设置在阳极支撑板(14)和阴极支撑板(18)之间的膜电极组件(MEA)(16))的燃料电池(12),阳极和/或 阴极支撑板包括具有预定孔径的亲水基底层(80,82)。 反应物气体流(22,24)的压力大于冷却剂流(26)的压力,使得亲水基底层内的较大百分比的孔含有反应物气体而不是水。 在MEA的阴极侧形成的任何水将通过阴极支撑板迁移并远离MEA。 控制压力还可确保冷却水从冷却剂流向MEA的阳极侧连续迁移,从而防止膜变干。 冷却剂和反应物之间适当的孔径和压力差提高了燃料电池的电效率。
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